#include<iostream>
using namespace std;
int main() {
	//new单个
	int* n1 = new int;
	int* n2 = new int(2);//初始化为2

	//多个
	int* nn1 = new int[5];
	int* nn2 = new int[5]{ 1,2,3,4,5 };
	int* nn3 = new int[5]{ 0 };//均初始化为0
	int* nn4 = new int[5]();//均初始化为0

	return 0;
}